<template>
  
  <view class="cart-container" v-if="cart.length !== 0">
    <!-- 收货地址 -->
    <my-address></my-address>
    <!-- 商品列表的标题界面-->
    <view class="cart-title">
      <!--  左侧图标-->
      <uni-icons type="shop" size="18"></uni-icons>

      <!-- 右侧文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    
    <!-- 渲染购物车中的商品信息 -->
     <uni-swipe-action>
    <block v-for="(item, i) in cart" :key="i">
      <uni-swipe-action-item :right-options="options" @click="swiperItemClickHandler(item)">
      <my-goods :item="item" :showRadio="true" :showNum="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
      </uni-swipe-action-item>
    </block>
    </uni-swipe-action>
   
   <!-- 使用自定义的结算组件 -->
   <my-settle></my-settle>
  </view>

<!-- 空白购物车区域 -->
<view class="empty-cart" v-else>
  <image src="/static/cart_empty@2x.png" class="empty-img"></image>
  <text class="tip-text">空空如也~~</text>
</view>
</template>

<script>
  import badgeMix from "@/mixins/tabbar-badge.js"
  import { mapState,mapMutations } from "vuex"
  export default {
    mixins: [badgeMix],
    computed:{
      ...mapState('m_cart',['cart'])
    },
    data() {
      return {
        options:[{
          text:'删除',
          style:{
            backgroundColor:'#c00000'
          }
        }]
      };
    },
    methods:{
      ...mapMutations('m_cart', ['updateGoodsState','updateGoodsCount','removeGoodsById']),
      radioChangeHandler(e){
        this.updateGoodsState(e)
      },
      numberChangeHandler(e){
        this.updateGoodsCount(e)
       // this.setBadge()
      },
      swiperItemClickHandler(item){
        this.removeGoodsById(item.goods_id)
        // this.setBadge()
      }
    }
   
  }
</script>

<style lang="scss">
.cart-title{
  height: 40px;
  display: flex;
  align-items: center;
  padding-left: 5px;    
  font-size: 14px;
  border-bottom: 1px solid #efefef;
  .cart-title-text{
    margin-left: 10px;
  }
}
.cart-container{
  padding-bottom: 50px;
}

.empty-cart{
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;
  
  .empty-img{
    height: 90px;
    width: 90px;
    
  }
  .tip-text{
    font-size: 12px;
    color: gray;
    margin-top: 15px;
  }
}
</style>
